As expected, the jet-driven explosion into a bipolar CSM forms a highly non-spherical bipolar explosion. The faster expansion along and near the polar direction has implications to the light curve (e.g., [1]}). The first one is that the inflated polar lobes imply that at early times an equatorial observer sees a larger photosphere than a polar observer. Later, because of the faster expansion of the lobes the photosphere of the lobes retreats faster. This implies that the photosphere area that an equatorial observer sees decreases faster than that of a polar observer.
